CN109777220A - A kind of compound water-in-water multicolor coating of graphene and preparation method thereof - Google Patents

A kind of compound water-in-water multicolor coating of graphene and preparation method thereof Download PDF

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CN109777220A
CN109777220A CN201811493143.5A CN201811493143A CN109777220A CN 109777220 A CN109777220 A CN 109777220A CN 201811493143 A CN201811493143 A CN 201811493143A CN 109777220 A CN109777220 A CN 109777220A
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graphene
water
agent
base paint
liquid
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CN109777220B (en
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王仕新
付绪兵
茆玉宝
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NINGBO MORSH TECHNOLOGY Co Ltd
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NINGBO MORSH TECHNOLOGY Co Ltd
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Abstract

The invention discloses compound water-in-water multicolor coatings of a kind of graphene and preparation method thereof; including protection glue, base paint and outsourcing liquid; feature is that protection glue is made of deionized water, protection rubber powder, sodium pyrophosphate and anticorrosion and bactericidal agent, and base paint is made of deionized water, graphene aqueous liquid dispersion, cellulose, coalescing agent, multifunctional assistant, dispersing agent, sterilization antiseptic, defoaming agent, lotion, protection glue and pigments and fillers;Outsourcing liquid is by deionized water 10%~34%; graphene aqueous liquid dispersion, lotion, coalescing agent, multifunctional assistant and thickener composition; preparation method includes the preparation of protection glue, the preparation of graphene aqueous liquid dispersion, base paint preparation, toning and the preparation of outsourcing liquid; the step of being finally mixed to get product, advantage be it is water-fast, alkaline-resisting, scrubbing resistance is poor and stain resistance is good.

Description

A kind of compound water-in-water multicolor coating of graphene and preparation method thereof
Technical field
The invention belongs to paint fields more particularly to a kind of compound water-in-water multicolor coating of graphene and preparation method thereof.
Background technique
With a series of appearance of environmental regulations of country, water paint is increasingly had been favored by people, and water-water is colorful Coating is the liquid or gel for containing two or more colour particles in a kind of coating, in having had for suspension Full Water-borne modification, environmentally protective, color is beautiful, high decoration grade, and high anti-stone coating true to nature has fabulous adhesive force and elasticity Simultaneously have the characteristics that high waterproof, high durable, high dirt resistance coating, and have good application property, largely contract The short construction period, cost is reduced, more colorful simulated effect can be drawn out according to design, can satisfy the aesthetic requirement of people Coating, meet coating future thrust.Many problems are also exposed in the development process of water-in-water multicolor coating, it is such as resistance to Water, alkaline-resisting, scrubbing resistance is poor, and stain resistance difference problem leads to reduced service life, limits its scope of application.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of stones water-fast, alkaline-resisting, scrubbing resistance is poor and stain resistance is good Black compound water-in-water multicolor coating of alkene and preparation method thereof.
The technical scheme of the invention to solve the technical problem is: a kind of colorful painting of compound water-water of graphene Material, including protection glue, base paint and outsourcing liquid, protection glue, the base paint and the outsourcing liquid quality Than for 1:(0.6~1.8): (0.8~1.2), wherein the protection glue is by following raw material and its mass percentage composition: going Ionized water 90%~95% protects rubber powder 5%~9%, sodium pyrophosphate 0~1.2% and anticorrosion and bactericidal agent 0~0.5%;
The base paint is by following raw material and its mass percentage composition: deionized water 30%~60%, graphene water Property dispersion liquid 1%~10%, cellulose 0.1%~0.5%, coalescing agent 3%~8%, multifunctional assistant 0.1%~0.3%, Dispersing agent 0.2%~1%, sterilization antiseptic 0.2%~0.5%, defoaming agent 0.1%~0.3%, lotion 10%~30% are protected Protect glue 1%~10% and pigments and fillers 5%~40%;
The outsourcing liquid is by following raw material and its mass percentage composition: deionized water 10%~34%, graphene water Property dispersion liquid 1%~10%, lotion 60%~80%, coalescing agent 4%~10%, multifunctional assistant 0.2%~0.5% and increase Thick dose 0.5%~1%.
The protection rubber powder is one of GTS or S-482;The anticorrosion and bactericidal agent is isothiazolinone chemical combination Object;The graphene be one of graphene powder or graphene aqueous slurry and its specific surface area be 150~ 1300g/ ㎡, average thickness are 1~8nm;The cellulose is hydroxylated cellulose ether;The coalescing agent is alcohol ester ten Two, one or more of propylene glycol, ethylene glycol, benzyl alcohol, butyl glycol ether;The multifunctional assistant is poly hydramine One of class, amino-methyl -ol class compound;The dispersing agent is polyacids sodium salt, the polymer of affinity groups containing pigment is molten One of liquid;The defoaming agent is one of mineral oil antifoam agent, organic silicon defoamer, polymer defoaming agent;It is described Lotion be one or both of pure-acrylic emulsion, silicone acrylic emulsion, styrene-acrylic emulsion, fluorine carbon emulsion, fluoro-silicone emulsion and two or more Mixture;The pigments and fillers be one or more of titanium dioxide, kaolin, powdered whiting, mica powder, talcum powder, The multifunctional assistant is multifunctional assistant AMP-95, contains 5% moisture content -2-amino-2-methyl-1-propanol.
Coalescing agent in the base paint is by alcohol ester 12, propylene glycol and the ethylene glycol ratio of 2:2:1 in mass ratio It mixes;Coalescing agent in the outsourcing liquid by alcohol ester 12, propylene glycol, butyl glycol ether and benzyl alcohol in mass ratio The ratio of 3:2:1:1 mixes.
The graphene aqueous liquid dispersion is pre-dispersed for graphene powder or slurry are add to deionized water progress It is configured to the graphene aqueous liquid dispersion of 1wt% concentration.
The preparation method of the above-mentioned compound water-in-water multicolor coating of graphene, comprising the following steps:
(1) protection glue preparation: stir at low speed down according to mass percent by deionized water, protection rubber powder, sodium pyrophosphate, Anticorrosion and bactericidal agent sequentially adds in stirred tank, and high speed dispersion is to being completely dissolved, wherein each material quality percentage in protection glue Are as follows: deionized water 90%~95% protects rubber powder 5%~9%, sodium pyrophosphate 0~1.2% and anticorrosion and bactericidal agent 0~0.5%;
(2) graphene aqueous liquid dispersion prepare: by graphene powder or slurry be add to deionized water carry out it is pre-dispersed, It is configured to the graphene aqueous liquid dispersion of 1wt% concentration;
(3) prepared by base paint: stirring at low speed down according to mass percent first by deionized water, graphene dispersing solution, fiber Element be added after high-speed stirred to being completely dispersed, then stir at low speed down sequentially add coalescing agent, multifunctional assistant, dispersing agent, Then sterilization antiseptic, defoaming agent, pigments and fillers, high speed dispersion to fineness≤50 μm are added lotion, glue are protected to be uniformly dispersed, Wherein each material quality percentage in base paint are as follows: deionized water 30%~60%, graphene aqueous liquid dispersion 1%~10%, Cellulose 0.1%~0.5%, coalescing agent 3%~8%, multifunctional assistant 0.1%~0.3%, dispersing agent 0.2%~1%, Sterilization antiseptic 0.2%~0.5%, defoaming agent 0.1%~0.3%, lotion 10%~30% protect 1%~10% He of glue Pigments and fillers 5%~40%;
(4) it mixes colours: according to the color of the Pattern Design base paint of multicolor finish, adding pigment for base paint aqueous color paste It mixes colours, can dispense stand-by respectively;
(5) prepared by outsourcing liquid: first stirring deionized water, graphene dispersing solution, coalescing agent addition according to mass percent Mix kettle high speed stirring, after being thoroughly mixed, sequentially added under lower-speed state lotion, thickener save after mixing evenly it is standby With wherein each material quality percentage of outsourcing liquid are as follows: deionized water 10%~40%, graphene aqueous liquid dispersion 1%~10%, Lotion 60%~80%, coalescing agent 4%~10%, multifunctional assistant 0.2%~0.5% and thickener 0.5%~1%;
(6) it is uniformly dispersed to form stable dispersion after according to a certain percentage mixing the base paint after protecting glue and mixing colours Body is eventually adding outsourcing liquid, and the compound water-in-water multicolor coating of graphene is obtained after stirring at low speed, wherein the protection Glue, the base paint and the outsourcing liquid mass ratio are 1:(0.6~1.8): (0.8~1.2).
Compared with the prior art, the advantages of the present invention are as follows a kind of: the compound water-in-water multicolor coating of graphene of the present invention and Preparation method, due to graphene sheet layer structure and with intensity height, the electric conductivity that flexibility is good, excellent and shielding properties Excellent characteristic, therefore the compound water-in-water multicolor coating system of graphene is used, it is remarkably improved water-in-water multicolor coating system Performance.It has high intensity using graphene, thus the mechanical strength of the colorful film of water-water, adhesive force and resistance to can be improved Scrubbing character.Using the flexibility of graphene, the splitting resistance of the colorful film of water-water is improved.Using excellent shielding properties, So that water-fast, the alkali resistance of the colorful film of water-water obtain larger raising.Using excellent electric conductivity, so that water-water is colorful The stain resistance of film obtains larger raising.The compound water-in-water multicolor coating preparation method of the graphene has production technology letter Single, advantage at low cost is more widely applied it, makes to fill up the technical deficiency of existing water-in-water multicolor coating Greatly extended with the service life.
Detailed description of the invention
Fig. 1 is graphene dispersion condition diagram after multi-color amplifies 200 times, and from left to right first is the more of addition graphene Colored paint, multi-color prepared by embodiment 8, multi-color prepared by multi-color and comparative example 3 prepared by comparative example 2.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Embodiment 1
A kind of compound water-in-water multicolor coating of graphene, including protection glue, base paint and outsourcing liquid, protect glue, base Plinth paint and outsourcing liquid mass ratio are 1:1:1, wherein protection glue is by following raw material and its mass percentage composition: deionized water 92%, protect rubber powder 7%, sodium pyrophosphate 0.8% and anticorrosion and bactericidal agent 0.2%;Base paint is by following raw material and its quality percentage Than composition: deionized water 33%, graphene aqueous liquid dispersion 5%, cellulose 0.3%, coalescing agent 5%, multifunctional assistant 0.2%, dispersing agent 0.5%, sterilization antiseptic 0.3%, defoaming agent 0.2%, lotion 20% protects glue 5% and pigments and fillers 30%;Outsourcing liquid is by following raw material and its mass percentage composition: deionized water 12%, graphene aqueous liquid dispersion 5%, lotion 75%, coalescing agent 7%, multifunctional assistant 0.3% and thickener 0.7%, steps are as follows for specific preparation method:
(1) deionized water 92Kg, protection rubber powder GTS 7Kg, sodium pyrophosphate protection glue preparation: are added in blender High speed dispersion is to being completely dissolved after 0.8Kg and anticorrosion and bactericidal agent 0.2Kg mixing;
(2) prepared by graphene aqueous liquid dispersion: 1Kg graphene powder being added in 99Kg deionized water and is divided in advance It dissipates, is configured to the graphene aqueous liquid dispersion of 1wt% concentration;
(3) prepared by base paint: first stirring deionized water 33.5Kg, graphene aqueous liquid dispersion 5Kg, cellulose 0.3Kg To being completely dispersed, 12 3Kg of alcohol ester, propylene glycol 2Kg, multifunctional assistant AMP-95 are then separately added under lower-speed state 0.2Kg, dispersing agent 0.5Kg, anticorrosion and bactericidal agent 0.3Kg, defoaming agent 0.2Kg, rutile type titanium white 5Kg, 1250 mesh kaolin 10Kg, 1250 mesh powdered whiting 5Kg, 1250 mesh mica powder 5Kg, 1250 mesh talcum powder 5Kg are dispersed to fineness less than 50 μm, so Pure-acrylic emulsion 20Kg is added afterwards, protection glue 5Kg can be dispensed for use after being uniformly dispersed;
(4) it mixes colours: according to the color of the Pattern Design base paint of multicolor finish, base paint being adjusted with aqueous color paste Color.
(5) prepared by outsourcing liquid: deionized water 12Kg, graphene aqueous liquid dispersion 5Kg, 12 4Kg of alcohol ester, benzene first is first added Alcohol 3Kg, multifunctional assistant AMP-95 0.3Kg high-speed stirred, then stir at low speed lower addition pure-acrylic emulsion 75Kg, thickener 0.7Kg is saved backup after mixing evenly;
(6) protection glue and assorted base paint are uniformly dispersed, and are wrapped up, be separated from each other, form stable dispersion, Be eventually adding outsourcing liquid, after stirring at low speed can finished product packing, glue, base paint and outsourcing liquid are wherein protected in the step It is in mass ratio 1:1:1.
Embodiment 2
With above-described embodiment 1, difference is:
(1) protection glue preparation: deionized water 95Kg being added in blender, protects rubber powder S-482 5Kg, high after mixing Speed, which is dispersed to, to be completely dissolved;
(2) prepared by graphene aqueous liquid dispersion: 20Kg5% graphene slurry body being added in 80Kg deionized water and is carried out It is pre-dispersed, it is configured to the graphene aqueous liquid dispersion of 1% concentration;
(3) prepared by base paint: first stirring deionized water 44.3Kg, graphene aqueous liquid dispersion 1Kg, cellulose 0.1Kg To being completely dispersed, 12 2Kg of alcohol ester, butyl glycol ether 1Kg, multifunctional assistant AMP- are then separately added under lower-speed state 950.1Kg, dispersing agent 0.2Kg, anticorrosion and bactericidal agent 0.2Kg, defoaming agent 0.1Kg, 800 mesh kaolin 20Kg are dispersed to fineness and are less than 50 μm, pure-acrylic emulsion 30Kg is then added, protection glue 1Kg can be dispensed for use after being uniformly dispersed;
(4) it mixes colours: according to the color of the Pattern Design base paint of multicolor finish, base paint being adjusted with aqueous color paste Color;
(5) prepared by outsourcing liquid: deionized water 34.3Kg, graphene aqueous liquid dispersion 1Kg, 12 3Kg of alcohol ester, benzene is first added Methanol 1Kg, multifunctional assistant AMP-95 0.2Kg high-speed stirred, then stir at low speed lower addition pure-acrylic emulsion 60Kg, thickener 0.5Kg is saved backup after mixing evenly;
(6) protection glue and assorted base paint are uniformly dispersed, and are wrapped up, be separated from each other, form stable dispersion, Be eventually adding outsourcing liquid, after stirring at low speed can finished product packing, wherein protecting glue, base paint and outsourcing liquid mass ratio are 5:3:4.
Embodiment 3
With above-described embodiment 1, difference is:
(1) deionized water 90Kg, protection rubber powder GTS 9Kg, sodium pyrophosphate protection glue preparation: are added in blender High speed dispersion is to being completely dissolved after 0.5Kg, anticorrosion and bactericidal agent 0.5Kg mixing;
(2) prepared by graphene aqueous liquid dispersion: 1Kg graphene powder being added in 99Kg deionized water and is divided in advance It dissipates, is configured to the graphene aqueous liquid dispersion of 1% concentration;
(3) prepared by base paint: first stirring deionized water 30Kg, graphene aqueous liquid dispersion 9.4Kg, cellulose 0.5Kg To being completely dispersed, 12 5Kg of alcohol ester, ethylene glycol 2Kg, benzyl alcohol 1Kg, multifunctional assistant are then separately added under lower-speed state AMP-95 0.3Kg, dispersing agent 1Kg, anticorrosion and bactericidal agent 0.5Kg, defoaming agent 0.3Kg, sharp type titanium dioxide 10Kg, 1250 mesh kaolinites Native 5Kg, 3000 mesh talcum powder 5Kg are dispersed to fineness less than 50 μm, and silicone acrylic emulsion 25Kg, protection glue 5Kg dispersion is then added It can be dispensed after uniformly stand-by;
(4) it mixes colours: according to the color of the Pattern Design base paint of multicolor finish, base paint being adjusted with aqueous color paste Color;
(5) prepared by outsourcing liquid: deionized water 10Kg, graphene aqueous liquid dispersion 10Kg, 12 7Kg of alcohol ester, second is first added Then glycol 3Kg, multifunctional assistant AMP-95 0.5Kg high-speed stirred stir at low speed lower addition fluorine carbon emulsion 68.5Kg, thickening Agent 1Kg is saved backup after mixing evenly;
(6) protection glue and assorted base paint are uniformly dispersed, and are wrapped up, be separated from each other, form stable dispersion, Be eventually adding outsourcing liquid, after stirring at low speed can finished product packing, wherein protecting glue, base paint and outsourcing liquid mass ratio are 5:9:6.
Embodiment 4
With above-described embodiment 1, difference is:
(1) protection glue preparation: deionized water 91Kg is added in blender, protects rubber powder S-482 8Kg, sodium pyrophosphate 1Kg, high speed dispersion is to being completely dissolved after mixing;
(2) prepared by graphene aqueous liquid dispersion: 20Kg graphene slurry being added in 80Kg deionized water and is divided in advance It dissipates, is configured to the graphene aqueous liquid dispersion of 1% concentration;
(3) prepared by base paint: first stirring deionized water 29.4Kg, graphene aqueous liquid dispersion 10Kg, cellulose 0.4Kg To being completely dispersed, ethylene glycol 3Kg, propylene glycol 2Kg, butyl glycol ether 2Kg, multifunctional assistant are then separately added under lower-speed state Agent AMP-95 0.2Kg, dispersing agent 0.6Kg, anticorrosion and bactericidal agent 0.2Kg, defoaming agent 0.2Kg, 3000 mesh kaolin 20Kg, 800 mesh Talcum powder 5Kg is dispersed to fineness less than 50 μm, styrene-acrylic emulsion 20Kg is then added, protection glue 8Kg can divide after being uniformly dispersed Dress is stand-by;
(4) it mixes colours: according to the color of the Pattern Design base paint of multicolor finish, base paint being adjusted with aqueous color paste Color;
(5) prepared by outsourcing liquid: deionized water 17.3Kg, graphene aqueous liquid dispersion 1Kg, 12 3Kg of alcohol ester, second is first added Glycol 1Kg, multifunctional assistant AMP-95 0.2Kg high-speed stirred, then stir at low speed lower addition fluoro-silicone emulsion 80Kg, thickener 0.5Kg is saved backup after mixing evenly;
(6) it is uniformly dispersed protection glue and assorted base paint to form stable dispersion, is eventually adding outsourcing liquid, low speed After mixing evenly can finished product packing, wherein protect glue, base paint and outsourcing liquid mass ratio are 2:3:2.
Embodiment 5
With above-described embodiment 1, difference is:
(1) deionized water 93.1Kg, protection rubber powder GTS 6Kg, sodium pyrophosphate protection glue preparation: are added in blender High speed dispersion is to being completely dissolved after 0.6Kg, anticorrosion and bactericidal agent 0.3Kg mixing;
(2) prepared by graphene aqueous liquid dispersion: 1Kg graphene powder being added in 99Kg deionized water and is divided in advance It dissipates, is configured to the graphene aqueous liquid dispersion of 1% concentration;
(3) prepared by base paint: first stirring deionized water 33.2Kg, graphene aqueous liquid dispersion 5Kg, cellulose 0.3Kg To being completely dispersed, 12 5Kg of alcohol ester, multifunctional assistant AMP-95 0.3Kg, dispersing agent are then separately added under lower-speed state 0.6Kg, anticorrosion and bactericidal agent 0.2Kg, defoaming agent 0.4Kg, rutile type titanium white 5Kg, 1250 mesh kaolin 5Kg, 800 mesh micas Powder 15Kg, 3000 mesh talcum powder 5Kg are dispersed to fineness less than 50 μm, and fluorine carbon emulsion 10Kg is then added, silicone acrylic emulsion 10Kg, protects Shield glue 5Kg can dispense stand-by after being uniformly dispersed;
(4) it mixes colours: according to the color of the Pattern Design base paint of multicolor finish, base paint being adjusted with aqueous color paste Color;
(5) prepared by outsourcing liquid: deionized water 12Kg, graphene aqueous liquid dispersion 5Kg, 12 4Kg of alcohol ester, benzene first is first added Alcohol 3Kg, multifunctional assistant AMP-95 0.3Kg high-speed stirred, then stir at low speed lower addition pure-acrylic emulsion 45Kg, silicone acrylic emulsion 30Kg, thickener 0.7Kg are saved backup after mixing evenly;
(6) protection glue and assorted base paint are uniformly dispersed, and are wrapped up, be separated from each other, form stable dispersion, Be eventually adding outsourcing liquid, after stirring at low speed can finished product packing, wherein protecting glue, base paint and outsourcing liquid mass ratio are 5:6:6.
To the compound water-in-water multicolor coating of graphene prepared by the present embodiment 1~5, obtained film is according to HG/ T4343-2012 " aqueous colorful building coating " is tested for the property, as a result as shown in table 1 below:
Table 1
Testing result through the foregoing embodiment can be seen that graphene to the abrasion resistance of water type multicolor paint for water drum, resistance to The performance boosts such as contamination are helpful.
Above-mentioned protection rubber powder is one of GTS or S-482;Anticorrosion and bactericidal agent is isothiazolinone compound;Graphite Alkene is one of graphene powder or graphene aqueous slurry and its specific surface area is 150~1300g/ ㎡, average thickness For 1~8nm;Cellulose is hydroxylated cellulose ether;Coalescing agent is alcohol ester 12, propylene glycol, ethylene glycol, benzyl alcohol, ethylene glycol One or more of butyl ether;Multifunctional assistant is one of poly alcamines, amino-methyl -ol class compound;Dispersion Agent is one of polyacids sodium salt, the polymer solution of affinity groups containing pigment;Defoaming agent is mineral oil antifoam agent, organosilicon defoaming One of agent, polymer defoaming agent;Lotion is pure-acrylic emulsion, in silicone acrylic emulsion, styrene-acrylic emulsion, fluorine carbon emulsion, fluoro-silicone emulsion One or two kinds of and two or more mixtures;Pigments and fillers are titanium dioxide, in kaolin, powdered whiting, mica powder, talcum powder One or more.
Two, comparative test
Comparative example 1: with above-described embodiment 1, difference is: graphene being replaced with graphene oxide, by 1 institute of comparative example Product obtained and product of the embodiment of the present invention compare, and performance difference is as shown in table 2 below.
Table 2
Water resistance (h) Alkali resistance (h) Abrasion resistance (secondary)
Embodiment 1 4224 4008 4500
Comparative example 1 3640 3260 3800
Above data illustrates graphene in multicolor finish for promoting the water resistance, alkali resistance, abrasion resistance of coating more Better than the effect of graphene oxide.Surface of graphene oxide has a large amount of functional group, and such as carboxyl, hydroxyl, epoxy group, this makes him Easy and organic matter association reaction, becomes graphene, the property of graphene and the property of original graphite are similar, graphene after reduction It is the removing of small molecule intercalation physics, graphene oxide is the stone by obtaining after restoring after removing after strong oxidizer oxidized graphite flake Black alkene microplate.The advantages of graphene compares with graphene oxide is as follows: the defect in graphene microchip is fewer, and graphene is micro- Piece is more excellent than the more complete shielding properties for leading to graphene product;The conductive and heat-conductive and mechanical performance of graphene are more excellent It is different;Functional group in graphene microchip is fewer, so properties of product are more stable.
2, coalescing agent is arranged in pairs or groups use in multicolor finish
With above-mentioned specific embodiment 1, difference is to form a film in base paint and outsourcing liquid to be helped the preparation method of embodiment 6-9 The formula composition of agent is as shown in table 3 below:
Table 3
Testing result according to the surveyed coating of example above is as shown in table 4 below:
Table 4
Embodiment 1 Embodiment 6 Embodiment 7 Embodiment 8 Embodiment 9
Water resistance (h) 4624 4600 5256 5864 4840
Alkali resistance (h) 4308 4264 5064 5628 4600
By above-mentioned 3 result of table it is found that the auxiliary agent in multi-color by alcohol ester 12, propylene glycol, butyl glycol ether, benzyl alcohol, Water resistance, the alkali resistance for the paint film that ethylene glycol compounds are more preferable.Wherein the coalescing agent of outsourcing liquid compounds comparison basis paint The compounding of coalescing agent influences paint film water resistance, alkali resistance bigger.
3, the dispersion comparison of graphene
The preparation method of blank group is to save graphene in base paint formulation with above-described embodiment 8, difference.
The preparation method of comparative example 2 is to save cellulose in base paint formulation with above-described embodiment 8, difference.
The preparation method of comparative example 3 is to save cellulose and more function in base paint formulation with above-described embodiment 8, difference It can auxiliary agent.Coating products obtained by comparative example 2-3 and 8 coating products of the embodiment of the present invention are compared, the dispersibility of graphene As shown in Figure 1, performance is as shown in table 4 below,
Table 4
Embodiment 8 Comparative example 2 Comparative example 3 Blank
Water resistance (h) 5864 4584 4360 2800
Alkali resistance (h) 5628 4272 4054 2664
Abrasion resistance (secondary) 5200 4800 4200 2700
By above-mentioned 4 result of table it is found that cellulose and multifunctional assistant play certain work to the dispersibility for improving graphene With.Cellulosic polymer chain easily forms hydrogen bond with water in water, and hydrogen bond makes it have very high aquation and its intermolecular Winding absorbs large quantity of moisture, itself volume is largely expanded, and reduce pigments and fillers and latex particle move freely sky Between;Cellulose molecular chain is wound mutually dimensional network structure simultaneously, and graphene microchip is enclosed among mesh, cannot be certainly By flowing, reunite again after solving the problems, such as graphene dispersion.Multifunctional assistant is that strongly pigment can be prevented again by being divided into powder Cohesion, facilitates the thickening power of cellulose thickener, greatly improves the efficiency of these products, and extremely excellent pH is provided to system Stability is to come the dispersion, the stabilization of system and the stabilization of viscosity that control pigment.
In conclusion according to above experimental result it follows that (1) graphene facilitates the water-fast of multi-color coating The raising of property, alkali resistance, abrasion resistance;(2) coalescing agent reasonably combined use in multicolor finish facilitates multi-color coating Water resistance, alkali resistance raising;(3) graphene can be better dispersed and be protected under the auxiliary of cellulose and multifunctional assistant It deposits;(4) graphene better disperses in multi-color helps to play effect of the graphene in film.
Above description is not limitation of the present invention, and the present invention is also not limited to the example above.The art it is common Within the essential scope of the present invention, the variations, modifications, additions or substitutions made also should belong to protection of the invention to technical staff Range.

Claims (5)

1. a kind of compound water-in-water multicolor coating of graphene, including protection glue, base paint and outsourcing liquid, it is characterised in that: institute Protection glue, the base paint and the outsourcing liquid mass ratio stated are 1:(0.6~1.8): (0.8~1.2), wherein institute The protection glue stated is by following raw material and its mass percentage composition: deionized water 90%~95%, protects rubber powder 5%~9%, Sodium pyrophosphate 0~1.2% and anticorrosion and bactericidal agent 0~0.5%;
The base paint is by following raw material and its mass percentage composition: deionized water 30%~60%, and aqueous point of graphene Dispersion liquid 1%~10%, cellulose 0.1%~0.5%, coalescing agent 3%~8%, multifunctional assistant 0.1%~0.3%, dispersion Agent 0.2%~1%, sterilization antiseptic 0.2%~0.5%, defoaming agent 0.1%~0.3%, lotion 10%~30%, protective glue Liquid 1%~10% and pigments and fillers 5%~40%;
The outsourcing liquid is by following raw material and its mass percentage composition: deionized water 10%~34%, and aqueous point of graphene Dispersion liquid 1%~10%, lotion 60%~80%, coalescing agent 4%~10%, multifunctional assistant 0.2%~0.5% and thickener 0.5%~1%.
2. the compound water-in-water multicolor coating of a kind of graphene according to claim 1, it is characterised in that: the protective glue Powder is one of GTS or S-482;The anticorrosion and bactericidal agent is isothiazolinone compound;The graphene is stone One of black alkene powder or graphene aqueous slurry and its specific surface area are 150~1300g/ ㎡, average thickness is 1~ 8nm;The cellulose is hydroxylated cellulose ether;The coalescing agent be alcohol ester 12, propylene glycol, ethylene glycol, benzyl alcohol, One or more of butyl glycol ether;The multifunctional assistant is poly alcamines, amino-methyl -ol class compound One of;The dispersing agent is one of polyacids sodium salt, the polymer solution of affinity groups containing pigment;The defoaming agent For one of mineral oil antifoam agent, organic silicon defoamer, polymer defoaming agent;The lotion is pure-acrylic emulsion, the third cream of silicon One or both of liquid, styrene-acrylic emulsion, fluorine carbon emulsion, fluoro-silicone emulsion and two or more mixtures;The pigments and fillers are titanium One or more of white powder, kaolin, powdered whiting, mica powder, talcum powder, the multifunctional assistant are multi-functional Auxiliary agent A MP-95 contains 5% moisture content -2-amino-2-methyl-1-propanol.
3. the compound water-in-water multicolor coating of a kind of graphene according to claim 2, it is characterised in that: the base paint In coalescing agent mixed by alcohol ester 12, propylene glycol and the ethylene glycol ratio of 2:2:1 in mass ratio;The outsourcing liquid In coalescing agent by alcohol ester 12, propylene glycol, butyl glycol ether and benzyl alcohol 3:2:1:1 in mass ratio ratio mixing and At.
4. the compound water-in-water multicolor coating of a kind of graphene according to claim 2, it is characterised in that: the graphene Aqueous liquid dispersion is to be add to deionized water graphene powder or slurry to carry out the pre-dispersed graphite for being configured to 1wt% concentration Alkene aqueous liquid dispersion.
5. the preparation method of the compound water-in-water multicolor coating of graphene described in any one of -4 according to claim 1, feature Be the following steps are included:
(1) protection glue preparation: stir at low speed down according to mass percent by deionized water, protection rubber powder, sodium pyrophosphate, anti-corrosion Fungicide sequentially adds in stirred tank, and high speed dispersion is to being completely dissolved, wherein each material quality percentage in protection glue are as follows: go Ionized water 90%~95% protects rubber powder 5%~9%, sodium pyrophosphate 0~1.2% and anticorrosion and bactericidal agent 0~0.5%;
(2) prepared by graphene aqueous liquid dispersion: graphene powder or slurry being add to deionized water and carry out pre-dispersed, configuration At the graphene aqueous liquid dispersion of 1wt% concentration;
(3) prepared by base paint: stirring at low speed down and first adds deionized water, graphene dispersing solution, cellulose according to mass percent Enter rear high-speed stirred to being completely dispersed, then stirs at low speed down and sequentially add coalescing agent, multifunctional assistant, dispersing agent, sterilization Then preservative, defoaming agent and pigments and fillers, high speed dispersion to fineness≤50 μm are added lotion, glue are protected to be uniformly dispersed, wherein Each material quality percentage in base paint are as follows: deionized water 30%~60%, graphene aqueous liquid dispersion 1%~10%, fiber Element 0.1%~0.5%, coalescing agent 3%~8%, multifunctional assistant 0.1%~0.3%, dispersing agent 0.2%~1%, sterilization Preservative 0.2%~0.5%, defoaming agent 0.1%~0.3%, lotion 10%~30% protect glue 1%~10% and face to fill out Material 5%~40%;
(4) it mixes colours: according to the color of the Pattern Design base paint of multicolor finish, base paint being adjusted respectively with aqueous color paste Color can dispense stand-by;
(5) prepared by outsourcing liquid: stirred tank first is added in deionized water, graphene dispersing solution, coalescing agent according to mass percent High speed stirring, after being thoroughly mixed, lotion, thickener is sequentially added under lower-speed state and is saved backup after mixing evenly, Middle each material quality percentage of outsourcing liquid are as follows: deionized water 10%~40%, graphene aqueous liquid dispersion 1%~10%, lotion 60%~80%, coalescing agent 4%~10%, multifunctional assistant 0.2%~0.5% and thickener 0.5%~1%;
(6) it is uniformly dispersed to form stable dispersion after according to a certain percentage mixing the base paint after protecting glue and mixing colours, It is eventually adding outsourcing liquid, the compound water-in-water multicolor coating of graphene is obtained after stirring at low speed, wherein the protective glue Liquid, the base paint and the outsourcing liquid mass ratio are 1:(0.6~1.8): (0.8~1.2).
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